Measuring and testing – Measuring vessel
Patent
1979-09-12
1981-04-14
Goldberg, Gerald
Measuring and testing
Measuring vessel
73 405R, 34087029, 350110, G01N 122, G01M 304
Patent
active
042612047
ABSTRACT:
A system and apparatus by which an observer outside a building can read the indices of an instrument located within the building and can check the presence of combustible gas in the atmosphere within the building, comprising a guide tube extending between a weatherproof receiving station outside the building and a transmitting station at the meter, including accessory means for confining gas entering the building around a gas main and conducting it to the transmitting station.
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patent: 3573773 (1971-04-01), O'Hanlon
patent: 3690775 (1972-09-01), Cousins
patent: 3699950 (1972-10-01), Humphrey, Jr. et al.
patent: 4204115 (1980-05-01), Boldridge, Jr.
MSA Data Sheet, 08-00-03.
MSA Data Sheet, 08-00-04.
AO Fiber Optics-The Complete Line From American Optical.
Donaldson Construction Co., Inc.
Goldberg Gerald
Roskos Joseph W.
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