HK21878A - Clock having means to project time indicia on ceiling - Google Patents

Clock having means to project time indicia on ceiling

Info

Publication number
HK21878A
HK21878A HK21878A HK21878A HK21878A HK 21878 A HK21878 A HK 21878A HK 21878 A HK21878 A HK 21878A HK 21878 A HK21878 A HK 21878A HK 21878 A HK21878 A HK 21878A
Authority
HK
Hong Kong
Prior art keywords
ceiling
clock
project time
time indicia
indicia
Prior art date
Application number
HK21878A
Inventor
G C Palmer
Original Assignee
Standard Packaging Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Standard Packaging Corp filed Critical Standard Packaging Corp
Publication of HK21878A publication Critical patent/HK21878A/en

Links

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
    • G04B19/00—Indicating the time by visual means
    • G04B19/34—Position of the hands projected optically

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
HK21878A 1975-07-29 1978-04-27 Clock having means to project time indicia on ceiling HK21878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3160675A GB1476563A (en) 1975-07-29 1975-07-29 Clock having means to project time indicia on ceiling

Publications (1)

Publication Number Publication Date
HK21878A true HK21878A (en) 1978-05-05

Family

ID=10325668

Family Applications (1)

Application Number Title Priority Date Filing Date
HK21878A HK21878A (en) 1975-07-29 1978-04-27 Clock having means to project time indicia on ceiling

Country Status (2)

Country Link
GB (1) GB1476563A (en)
HK (1) HK21878A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949665A1 (en) * 1979-12-11 1981-06-19 Hans Ing.(Grad.) 7340 Geislingen Renftle Transparent electronic display element for e.g. timepiece - is mounted between frame elements to allow use in slide projector
FR2633070A1 (en) * 1988-06-21 1989-12-22 Rigal Isabelle Clock allowing optical projection of the time and projection assembly including such a clock
CN114442466A (en) * 2022-02-17 2022-05-06 赵宝山 Alarm clock projection lamp

Also Published As

Publication number Publication date
GB1476563A (en) 1977-06-16

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