NL39847C - - Google Patents

Info

Publication number: NL39847C
Authority: NL; Netherlands

Application number

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.)

1934-02-23

Publication of NL39847C publication Critical patent/NL39847C/xx

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2001/00—Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses

Landscapes

Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
Manufacturing & Machinery (AREA)
Ophthalmology & Optometry (AREA)
Mechanical Engineering (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Moulds For Moulding Plastics Or The Like (AREA)

NL39847D 1934-02-23 NL39847C (mo)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB603134A GB416398A (en)	1934-02-23	1934-02-23	Improvements in or relating to optical lenses and similar devices

Publications (1)

Publication Number	Publication Date
NL39847C true NL39847C (mo)

Family

ID=9807155

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL39847D NL39847C (mo)	1934-02-23

Country Status (3)

Country	Link
FR (1)	FR775843A (mo)
GB (1)	GB416398A (mo)
NL (1)	NL39847C (mo)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2511840A (en) *		1950-06-20		Self-compensating optical system
US2419478A (en) *	1940-10-24	1947-04-22	Hartford Nat Bank & Trust Co	Apparatus for indirect X-ray photography
TWI382897B (zh) *	2008-05-16	2013-01-21	Hon Hai Prec Ind Co Ltd	螺紋模具

0
- NL NL39847D patent/NL39847C/xx active
1934
- 1934-02-23 GB GB603134A patent/GB416398A/en not_active Expired
- 1934-07-13 FR FR775843D patent/FR775843A/fr not_active Expired

Also Published As

Publication number	Publication date
GB416398A (en)	1934-09-13
FR775843A (fr)	1935-01-10

Publication	Publication Date	Title
FR767645A (mo)	1934-07-20
FR767481A (mo)	1934-07-17
FR767408A (mo)	1934-07-16
FR767595A (mo)	1934-07-19
FR795208A (mo)	1936-03-09
BE409329A (mo)
BE402584A (mo)	1934-05-31
BE402207A (mo)
BE403335A (mo)
BE384004A (mo)
BE421035A (mo)	1937-05-31
BE402710A (mo)	1934-05-31
BE416910A (mo)
BE402553A (mo)
BE403266A (mo)
BE406786A (mo)
BE403299A (mo)	1934-06-30
NL44774C (mo)
BE403371A (mo)
BE402931A (mo)	1934-06-30
BE406629A (mo)
BE403733A (mo)
BE400763A (mo)	1934-02-28
BE403408A (mo)
NL44173C (mo)