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Heinrich Ackermann
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Individual
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Individual
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Publication of GB190219797ApublicationCriticalpatent/GB190219797A/en
19,797. Ackermann, H. Sept. 10. Toy building-blocks.-The blocks a are made of the form shown in Fig. 1, the width of the end notches b being equal to the thickness of the block. The blocks can be connected together, as shown, for instance, in Fig. 3, to form various buildings &c.
GB190219797D1902-09-101902-09-10Improvements in Toys.
ExpiredGB190219797A
(en)