Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1975-03-10
1976-12-14
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02426935
REFERENCES:
patent: D198392 (1964-06-01), Thomas
patent: D209232 (1967-11-01), Charniga
patent: 697594 (1902-04-01), Alteneder
patent: 3094784 (1963-06-01), Van Dyke
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