Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Chemical
Patent
1990-10-11
1992-10-27
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Chemical
D10 46, D10 52
Patent
active
D03305210
REFERENCES:
patent: D238887 (1976-02-01), O'Neal et al.
patent: D296823 (1988-07-01), Kuwa et al.
patent: 4765193 (1988-08-01), Holden et al.
patent: 4779446 (1988-10-01), Rowland
Lumidor Safety Products, "Gas-Pro," advertising sheet (Aug. 1980).
"GasTech," advertising sheet (Undated).
"Enerac," advertising sheet (Undated).
"GMI," advertising sheet (Undated).
"AIM Gas Detectors," advertising sheet (Undated).
Dynamation, Inc., "CGM 947," advertising sheet (Undated).
GC Industries, "GC Industries," advertising sheet (Undated).
"Matheson TECH/Brief," advertising sheet TB-240 (Undated).
Biosystems Inc., "PhD," advertising sheet (Undated).
Bacharach, "Sentinel 4," advertising sheet (Undated).
MDA, "MSTox8600," advertising sheet (Undated).
Ion Science, "Gas Check," advertising sheet (Undated).
Compur, "Monitox," advertising sheet (Undated).
Davis Antoine D.
Holtje Nelson C.
J and N Associates, Inc.
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