DE336140C - - Google Patents
Info
- Publication number
- DE336140C DE336140C DE1920336140D DE336140DA DE336140C DE 336140 C DE336140 C DE 336140C DE 1920336140 D DE1920336140 D DE 1920336140D DE 336140D A DE336140D A DE 336140DA DE 336140 C DE336140 C DE 336140C
- Authority
- DE
- Germany
- Prior art keywords
- glass
- lid
- cover
- celluloid
- free space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000011521 glass Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 229920002160 Celluloid Polymers 0.000 description 5
- 238000005452 bending Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/004—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US266382A US1333194A (en) | 1918-12-12 | 1918-12-12 | Watch |
Publications (1)
Publication Number | Publication Date |
---|---|
DE336140C true DE336140C (enrdf_load_stackoverflow) | 1921-04-25 |
Family
ID=23014339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1920336140D Expired DE336140C (enrdf_load_stackoverflow) | 1918-12-12 | 1920-01-26 |
Country Status (3)
Country | Link |
---|---|
US (1) | US1333194A (enrdf_load_stackoverflow) |
DE (1) | DE336140C (enrdf_load_stackoverflow) |
FR (1) | FR509450A (enrdf_load_stackoverflow) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2453616A (en) * | 1944-06-06 | 1948-11-09 | Berstell Leo | Watch bezel |
US3657876A (en) * | 1970-01-16 | 1972-04-25 | Frank R Hancock Jr | Fog proof watch crystal |
US4067186A (en) * | 1976-12-17 | 1978-01-10 | Timex Corporation | Rotatable crystal and bezel assembly for achieving special visual effects in a timepiece |
CH660277GA3 (enrdf_load_stackoverflow) * | 1985-04-09 | 1987-04-15 |
-
1918
- 1918-12-12 US US266382A patent/US1333194A/en not_active Expired - Lifetime
-
1920
- 1920-01-26 DE DE1920336140D patent/DE336140C/de not_active Expired
- 1920-02-05 FR FR509450A patent/FR509450A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1333194A (en) | 1920-03-09 |
FR509450A (fr) | 1920-11-09 |
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