@book{felt_&_tarrant_mfg._co._methods_1928,
	title = {Methods of {Operating} the {Comptometer}},
	url = {http://archive.org/details/methods1928},
	abstract = {This is the 1928 edition of the standard manual for using the Comptometer mechanical calculator made by Felt \& Tarrant. It was expanded to 68 pages, mostly by having additional pages inserted at the start before the main  text. These pages deal with oiling, the Controlled-Key mechanism and error correction, and the features of the clearing mechanism of the model J.

Copyright 1895, 1904, 1911, 1913, 1915, 1916, 1920, 1921, and 1928.
68 page stapled booklet
136mm × 196mm × 4mm},
	language = {eng},
	urldate = {2018-01-06},
	author = {Felt \& Tarrant Mfg. Co., Chicago},
	year = {1928},
	keywords = {Comptometer, Mechanical calculator},
}

{"_id":"8A484FWSH4nGzwv2E","bibbaseid":"felttarrantmfgco-methodsofoperatingthecomptometer-1928","authorIDs":[],"author_short":["Felt & Tarrant Mfg. Co., C."],"bibdata":{"bibtype":"book","type":"book","title":"Methods of Operating the Comptometer","url":"http://archive.org/details/methods1928","abstract":"This is the 1928 edition of the standard manual for using the Comptometer mechanical calculator made by Felt & Tarrant. It was expanded to 68 pages, mostly by having additional pages inserted at the start before the main text. These pages deal with oiling, the Controlled-Key mechanism and error correction, and the features of the clearing mechanism of the model J. Copyright 1895, 1904, 1911, 1913, 1915, 1916, 1920, 1921, and 1928. 68 page stapled booklet 136mm × 196mm × 4mm","language":"eng","urldate":"2018-01-06","author":[{"propositions":[],"lastnames":["Felt","&","Tarrant","Mfg.","Co."],"firstnames":["Chicago"],"suffixes":[]}],"year":"1928","keywords":"Comptometer, Mechanical calculator","bibtex":"@book{felt_&_tarrant_mfg._co._methods_1928,\n\ttitle = {Methods of {Operating} the {Comptometer}},\n\turl = {http://archive.org/details/methods1928},\n\tabstract = {This is the 1928 edition of the standard manual for using the Comptometer mechanical calculator made by Felt \\& Tarrant. It was expanded to 68 pages, mostly by having additional pages inserted at the start before the main text. These pages deal with oiling, the Controlled-Key mechanism and error correction, and the features of the clearing mechanism of the model J.\n\nCopyright 1895, 1904, 1911, 1913, 1915, 1916, 1920, 1921, and 1928.\n68 page stapled booklet\n136mm × 196mm × 4mm},\n\tlanguage = {eng},\n\turldate = {2018-01-06},\n\tauthor = {Felt \\& Tarrant Mfg. Co., Chicago},\n\tyear = {1928},\n\tkeywords = {Comptometer, Mechanical calculator},\n}\n\n","author_short":["Felt & Tarrant Mfg. Co., C."],"key":"felt_&_tarrant_mfg._co._methods_1928","id":"felt_&_tarrant_mfg._co._methods_1928","bibbaseid":"felttarrantmfgco-methodsofoperatingthecomptometer-1928","role":"author","urls":{"Paper":"http://archive.org/details/methods1928"},"keyword":["Comptometer","Mechanical calculator"],"metadata":{"authorlinks":{}},"html":""},"bibtype":"book","biburl":"http://bibbase.org/zotero/arithmometre.org","creationDate":"2021-03-13T01:54:13.532Z","downloads":0,"keywords":["comptometer","mechanical calculator"],"search_terms":["methods","operating","comptometer","felt & tarrant mfg. co."],"title":"Methods of Operating the Comptometer","year":1928,"dataSources":["3ENPFoLZgTfyxFgps"]}