FR1173856A - Cross-linked light protector, especially light tubes - Google Patents

Cross-linked light protector, especially light tubes

Info

Publication number
FR1173856A
FR1173856A FR1173856DA FR1173856A FR 1173856 A FR1173856 A FR 1173856A FR 1173856D A FR1173856D A FR 1173856DA FR 1173856 A FR1173856 A FR 1173856A
Authority
FR
France
Prior art keywords
light
cross
protector
linked
tubes
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ULMER PRESSWERK FRANZ ZWICK K
Original Assignee
ULMER PRESSWERK FRANZ ZWICK K
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 ULMER PRESSWERK FRANZ ZWICK K filed Critical ULMER PRESSWERK FRANZ ZWICK K
Application granted granted Critical
Publication of FR1173856A publication Critical patent/FR1173856A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
FR1173856D 1956-05-02 1957-04-30 Cross-linked light protector, especially light tubes Expired FR1173856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1173856X 1956-05-02

Publications (1)

Publication Number Publication Date
FR1173856A true FR1173856A (en) 1959-03-03

Family

ID=7729577

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1173856D Expired FR1173856A (en) 1956-05-02 1957-04-30 Cross-linked light protector, especially light tubes

Country Status (1)

Country Link
FR (1) FR1173856A (en)

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