A METHOD OF TESTING MATERIAL HARDNESS AND AN INDENTOR FOR CARRYING OUT THE METHOD - Patent 0041969

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EP 0 041 969 A1

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(43)	Date of publication:
	23.12.1981 Bulletin 1981/51

(21)	Application number: 80902310.0

(22)	Date of filing: 03.12.1980

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International Patent Classification (IPC):

G01N 3/ 42^{( . )}

G01N 3/ 44^{( . )}

(86)	International application number:
	PCT/SE1980/000313

(87)	International publication number:
	WO 1981/001614 (11.06.1981 Gazette 1981/14)

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

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Priority:

05.12.1979 SE 19790010034

(71)	Applicant: TELEFONAKTIEBOLAGET L M ERICSSON
	S-126 25 Stockholm (SE)

(72)	Inventor:
	TOOMINGAS, Illar S-122 48 Enskede (SE)

(74)	Representative: Baumbach, Thorkild, et al
	Ankarvägen 4 S-761 40 Norrtälje S-761 40 Norrtälje (SE)

(54)	A METHOD OF TESTING MATERIAL HARDNESS AND AN INDENTOR FOR CARRYING OUT THE METHOD