FR1327014A - hourglass - Google Patents
hourglassInfo
- Publication number
- FR1327014A FR1327014A FR851088A FR851088A FR1327014A FR 1327014 A FR1327014 A FR 1327014A FR 851088 A FR851088 A FR 851088A FR 851088 A FR851088 A FR 851088A FR 1327014 A FR1327014 A FR 1327014A
- Authority
- FR
- France
- Prior art keywords
- hourglass
- 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
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
- G04F1/04—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity
- G04F1/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers by movement or acceleration due to gravity by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Formation Of Insulating Films (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR851088A FR1327014A (en) | 1961-01-30 | 1961-01-30 | hourglass |
GB349662A GB936435A (en) | 1961-01-30 | 1962-01-30 | Timing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR851088A FR1327014A (en) | 1961-01-30 | 1961-01-30 | hourglass |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1327014A true FR1327014A (en) | 1963-05-17 |
Family
ID=8747699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR851088A Expired FR1327014A (en) | 1961-01-30 | 1961-01-30 | hourglass |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1327014A (en) |
GB (1) | GB936435A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112216234B (en) * | 2019-08-19 | 2022-09-13 | 深圳市毅景科技有限公司 | Projection type playing equipment |
-
1961
- 1961-01-30 FR FR851088A patent/FR1327014A/en not_active Expired
-
1962
- 1962-01-30 GB GB349662A patent/GB936435A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB936435A (en) | 1963-09-11 |
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