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- Hardcore Inventing: Invent, Protect, Promote, and Profit from Your IdeasYonover, Robert N.; Crowe, Ellie

- Softcover
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Free Shipping - Hardcore Inventing: Invent, Protect, Promote, and Profit From Your InventionsCrowe, Ellie; Yonover, Robert N.

- Softcover
- Used
Free Shipping - Hardcore Inventing: Invent, Protect, Promote, and Profit From Your InventionsCrowe, Ellie; Yonover, Robert N.

- Softcover
- Used
Free Shipping - Hardcore Inventing: Invent, Protect, Promote, and Profit from Your IdeasCrowe, Ellie,Yonover, Robert N.

- Softcover
- Used
US$ 3.99 shipping - Hardcore Inventing: Invent, Protect, Promote, and Profit From Your InventionsCrowe, Ellie,Yonover, Robert N.

- Softcover
- Used
US$ 3.75 shipping