|
US1320114A
(en)
*
|
|
1919-10-28 |
|
Wilfred t |
|
US475998A
(en)
*
|
|
1892-05-31 |
|
Seal for leading-in wires |
|
US690953A
(en)
*
|
1900-04-18 |
1902-01-14 |
Peter Cooper Hewitt |
Method of electric lighting.
|
|
US1489099A
(en)
*
|
1922-06-05 |
1924-04-01 |
Silica Syndicate Ltd |
Manufacture and production of gas-tight seals or closures between metal and vitreous material
|
|
US2060043A
(en)
*
|
1935-05-29 |
1936-11-10 |
Hygrade Sylvania Corp |
Arc discharge lamp
|
|
US2084913A
(en)
*
|
1935-11-19 |
1937-06-22 |
Telefunken Gmbh |
Seal for electron discharge devices
|
|
US2169570A
(en)
*
|
1936-04-23 |
1939-08-15 |
Bell Telephone Labor Inc |
Sealed joint for conductors
|
|
GB476488A
(en)
*
|
1936-06-05 |
1937-12-06 |
Gen Electric Co Ltd |
Improvements in the sealing of electric conductors into quartz envelopes
|
|
US2147418A
(en)
*
|
1936-10-21 |
1939-02-14 |
Westinghouse Electric & Mfg Co |
Method of assembling lead-in conductor sealed through metallic casing
|
|
US2201717A
(en)
*
|
1937-02-01 |
1940-05-21 |
Gen Electric |
Sealed electrical device
|
|
US2248644A
(en)
*
|
1937-02-09 |
1941-07-08 |
Gen Electric |
Method of sealing evacuated envelopes
|
|
GB512974A
(en)
*
|
1938-04-22 |
1939-09-29 |
Siemens Electric Lamps & Suppl |
Improvements relating to hermetic seals between metal and vitreous material
|
|
US2202337A
(en)
*
|
1939-02-27 |
1940-05-28 |
Byron E Cohn |
Seal for evacuated vessels and method of forming the same
|
|
NL61573C
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
*
|
1939-05-27 |
|
|
|
|
US2296579A
(en)
*
|
1940-11-30 |
1942-09-22 |
Rca Corp |
Glass envelope seal
|
|
US2292863A
(en)
*
|
1941-08-26 |
1942-08-11 |
Gen Electric |
Lead-in arrangement
|
|
US2447158A
(en)
*
|
1943-08-31 |
1948-08-17 |
Gen Electric |
Sealing-in method for lamps and similar devices
|
|
US2496303A
(en)
*
|
1944-07-15 |
1950-02-07 |
Westinghouse Electric Corp |
Tipping-off operation and product
|
|
GB577738A
(en)
*
|
1944-11-27 |
1946-05-29 |
Standard Telephones Cables Ltd |
Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopes
|
|
US2486101A
(en)
*
|
1946-03-01 |
1949-10-25 |
Gen Electric |
Method of making glass-to-metal seals
|