METHOD AND APPARATUS FOR MANUFACTURING BUILDING BLOCKS CONTAINING HOLES

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EP 0 034 580 A1

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(43)	Date of publication:
	02.09.1981 Bulletin 1981/35

(21)	Application number: 79900460.0

(22)	Date of filing: 18.04.1979

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International Patent Classification (IPC):

B28B 1/ 08^{( . )}
B28B 13/ 02^{( . )}

B28B 7/ 08^{( . )}

(86)	International application number:
	PCT/SE1979/000095

(87)	International publication number:
	WO 1980/002251 (30.10.1980 Gazette 1980/25)

(84)	Designated Contracting States:
	CH DE FR GB LU

(71)	Applicant: INGESTRÖM, Curt Holger
	S-446 00 Älvängen (SE)

(72)	Inventor:
	INGESTRÖM, Curt Holger S-446 00 Älvängen (SE)

(54)	METHOD AND APPARATUS FOR MANUFACTURING BUILDING BLOCKS CONTAINING HOLES