GB1239452A - - Google Patents

Info

Publication number
GB1239452A
GB1239452A GB1239452DA GB1239452A GB 1239452 A GB1239452 A GB 1239452A GB 1239452D A GB1239452D A GB 1239452DA GB 1239452 A GB1239452 A GB 1239452A
Authority
GB
United Kingdom
Prior art keywords
groove
holes
block
post
twinlock
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
English (en)
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 filed Critical
Publication of GB1239452A publication Critical patent/GB1239452A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F13/00—Filing appliances with means for engaging perforations or slots
    • B42F13/02—Filing appliances with means for engaging perforations or slots with flexible or resilient means

Landscapes

  • Sheet Holders (AREA)
GB1239452D 1968-09-27 1968-09-27 Expired GB1239452A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4614468 1968-09-27

Publications (1)

Publication Number Publication Date
GB1239452A true GB1239452A (enrdf_load_stackoverflow) 1971-07-14

Family

ID=10440031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1239452D Expired GB1239452A (enrdf_load_stackoverflow) 1968-09-27 1968-09-27

Country Status (1)

Country Link
GB (1) GB1239452A (enrdf_load_stackoverflow)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee