Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1977-11-17
1980-04-08
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
D18 15, D1007
Patent
active
D02546574
REFERENCES:
patent: D242285 (1976-11-01), Maitland
patent: D251484 (1970-04-01), Howard
patent: 3510766 (1970-05-01), Russell
patent: 4082039 (1978-04-01), Schutt
IBM Technical Disclosure Bulletin, vol. 21, #6, 11/78, p. 2230, Document Stack Feeder System Count Display.
Holtje Nelson C.
Nienow Harvey C.
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