Testing and measuring apparatus, in particular in the form of test pens for testing surface tension, labelling pens, writing implements, markers

'apparatus':4 'form':9 'implement':20 'label':17 'marker':21 'measur':3 'particular':6 'pen':12,18 'surfac':15 'tension':16 'test':1,11,14 'write':19

Felt pens and fibre-tipped pens, ink pens

'felt':1 'fibr':5 'fibre-tip':4 'ink':8 'pen':2,7,9 'tip':6

Chemical preparations in the form of test inks for testing surface tension

'chemic':1 'form':5 'ink':8 'prepar':2 'surfac':11 'tension':12 'test':7,10

ARCOTEST

Owners