Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1987-03-09
1990-01-30
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D03057399
REFERENCES:
patent: D160766 (1950-11-01), Booth
patent: D283682 (1986-05-01), Raitmaa
patent: D283683 (1986-05-01), Raitmaa
patent: 2482504 (1949-09-01), Pennington
patent: 4438568 (1984-03-01), Kramer
Overseas Associated, Inc. Flyer.
New Equipment Digest, Jan. 1985, p. 71.
Design News, 2/3/1986, p. 148.
Mitchell Instrument Co. catalog.
Holtje Nelson C.
Oy Masters Instruments Ltd.
Veynar Caron D.
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