Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1983-06-20
1985-08-27
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D10 69
Patent
active
D02803020
REFERENCES:
patent: D199368 (1964-10-01), Vaida
patent: D271088 (1983-10-01), Ebner
patent: 2750678 (1956-06-01), Ziemann
patent: 4011660 (1977-03-01), Johnson
Holtje Nelson C.
Johnson Level & Tool Mfg. Co. Inc.
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