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Review Article| February 01 1970

H. BOUMAN

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Publisher: Emerald Publishing

Online ISSN: 1758-7379

Print ISSN: 0022-0418

1970

Journal of Documentation (1970) 26 (2): 161–163.

https://doi.org/10.1108/eb026492

Many chemical patent specifications use a so‐called ‘Markush formula’ to delimit the invention from the prior art.

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1970

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